EP3976328B1 - Multibearbeitungseinheit - Google Patents

Multibearbeitungseinheit Download PDF

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Publication number
EP3976328B1
EP3976328B1 EP20745087.5A EP20745087A EP3976328B1 EP 3976328 B1 EP3976328 B1 EP 3976328B1 EP 20745087 A EP20745087 A EP 20745087A EP 3976328 B1 EP3976328 B1 EP 3976328B1
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EP
European Patent Office
Prior art keywords
gripping
processing unit
fitting
unit according
base
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EP20745087.5A
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German (de)
English (en)
French (fr)
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EP3976328A1 (de
Inventor
Martin Zimmer
Günther Zimmer
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C9/00—Multi-purpose machines; Universal machines; Equipment therefor
    • B27C9/04—Multi-purpose machines; Universal machines; Equipment therefor with a plurality of working spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q37/00—Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C3/00—Drilling machines or drilling devices; Equipment therefor
    • B27C3/04—Stationary drilling machines with a plurality of working spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
    • B23Q39/021—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like
    • B23Q39/022—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder

Definitions

  • the invention relates to a multi-processing unit with a large number of movable tools installed or attached to a central body for handling, cutting, joining and assembling workpiece manipulation or processing with at least one central drive, the cutting tools in the central body either being in a retracted parking position or are in an extended working position, whereby several cutting tools - combined into a group mechanically or by software technology - can be brought into a working position at the same time and where the cutting tools represent different types or sizes for separating manufacturing processes.
  • a multifunctional unit is known from a plurality of driven tools built into a base body with at least one central drive.
  • the tools in the base body are either in a retracted parking position or in an extended working position.
  • the tools represent different types for separating and joining manufacturing processes.
  • the EP 0 581 247 A1 describes a screw tightening device with drive.
  • the drive consists of a vane motor, a countershaft and a fluid coupling.
  • the vane motor which can be driven by means of a flowing medium, is mounted as a whole in the housing of the device so that it can rotate around its center line. Its output shaft acts on a screwdriver shaft via a countershaft.
  • the wing motor housing is torsionally rigid with the rotor Flow coupling connected. If the screwdriver shaft blocks, the rotor of the fluid coupling in the drive housing spins.
  • a setting device for setting plate-like holding devices is known. It is used to attach roofing waterproofing membranes to roofs using screws and sealing washers.
  • the sealing washers and screws stored in the setting device are automatically positioned in front of an electric screwdriver in order to screw the screws with the sealing washers through the roof waterproofing membranes to the roof.
  • the present invention is based on the problem of developing a driven multi-processing unit for gripping, separating and/or joining processing and/or handling for simple tool changes, which is freely movable in 3-dimensional space in order to produce plate- and/or board-like workpieces with different Handling and processing tools.
  • At least one handling tool of the multi-processing unit is a gripping tool.
  • the gripping tool is a panel gripping device with two parallel gripping devices for gripping furniture panels.
  • the multi-processing unit has a large number of similar and/or different tools with which various holes, recesses and the like can be machined into a furniture panel, for example.
  • the tools required for a processing step e.g Group of several drills pneumatically extended from the multi-processing unit, locked and rotated.
  • the multi-processing unit With rotating drills, the multi-processing unit is now positioned by the handling device carrying it into a preselected position in front of the furniture panel and from there it is moved in a straight line against the furniture panel, for example to produce a row of holes.
  • the multi-processing unit is withdrawn.
  • the active drills are retracted again while their rotational movement is switched off.
  • the multi-processing unit also has, for example, a base assembly device and/or a fitting setting device with which it places a furniture base or fitting in part of the drilled holes. These devices have special means with which they remove the base or fitting from a magazine, transport it to the holes in the furniture panel and fasten it there in the holes. For this purpose, tools are available on the multi-processing unit that are adapted to the respective attachments.
  • the multi-processing unit can be freely moved in all six degrees of freedom within the processing space.
  • the Figure 1 shows a multi-processing unit (100), which can grip and process plate- or board-shaped workpieces, carried and guided by a handling device (10).
  • the workpieces for example furniture panels (1), are made, for example, from non-metallic materials such as wood, chipboard, plasterboard, fiber cement or the like. These materials also include composite materials without a large metal content.
  • the handling device (10) here is, for example, an articulated robot with so-called RRR kinematics.
  • the multi-processing unit (100) has, firstly, a group of ten extendable drilling tools (145), secondly, a deep hole drilling tool (152), thirdly, a plate gripping device (170), fourthly, a base mounting device (200) and fifthly, a fittings setting device (300 ).
  • the core of the multi-processing unit (130) consists of a central body (140), which is in principle a drill head without any additional attachments.
  • a robot flange plate (131) is attached to the central body (140) via an intermediate carrier plate (135), cf. Figure 2 .
  • the latter serves as an adapter via which the mass forces of the multi-processing unit (100) are supported on the handling device (10) and via which at least the energy and data communication can be transmitted.
  • a cable hose holder (132) is attached to the robot flange plate (131), in which the cable hose is held for the protected guidance of the energy lines and hoses as well as the communication lines.
  • a valve support plate (158) on which the pneumatic valves and the connections for load and signal lines are attached.
  • the central body (140) which is made of an aluminum alloy, consists of a cuboid main body (141). A smaller, also cuboid secondary body (151) with an almost square cross-section is formed on the side of this. According to Figure 3 A likewise cuboid motor flange plate (147) protrudes from the lower area of the main body (141). Its front side contacts the main flange plate (157).
  • each quill-like drilling tool (145) ends in the area of the front of the main body (141) in a spindle carrying a tool holder in order, for example, to hold drills (146) or milling cutters there as tools. At least some of the spindles have an extension stroke of, for example, 60-70 mm.
  • the extendable tools are in their rest position in a recessed parking position (143), cf. Figures 1 and 2 . To process a workpiece (1), they are extended from there into a working position (144) individually or in groups.
  • the spindle ends of all drilling tools (145) are connected to one another via gears that can be driven by a servo motor (148).
  • a servo motor 148
  • all gears mounted on the spindles sit in one plane.
  • Each gear of the spur gear is located in a cylindrical recess in the main body (141), which is, for example, 1 to 2 mm larger than the respective tip circle diameter of the gear arranged there. This creates a narrow gap around the gears.
  • the end faces of the gears are only 0.2 to 0.4 mm apart from the base body on each side.
  • Several externally accessible lubricant supply points in the main body (141) open into the connected gap space. The gap is partially filled with grease via the latter.
  • the lubricant is constantly conveyed along the gear train by means of the gears. For example, regardless of the parking or working position, all gears remain permanently engaged.
  • a servo motor (148) is flanged to the underside of the main body (141) on the downwardly projecting motor flange plate (147).
  • the center line of the drive shaft of the servo motor (148) is oriented parallel to the center lines of the drilling tools (145).
  • the deep groove ball bearing can be seen, which supports a shaft extension of the servo motor (148) in the main flange plate (157).
  • the servo motor (148) is a permanent magnet three-phase synchronous motor with, for example, a nominal output of 1.4 kW. It has a peak torque of, for example, 11.7 Nm.
  • a deep hole drilling tool (152) is installed in the secondary body (151) molded onto the main body (141), in the upper area of which is set back by, for example, 73 mm.
  • a secondary body (151) is formed in the upper area of the main body (141), in which a deep hole drilling tool (152) is installed.
  • the front end face of the secondary body (151) is set back by, for example, 73 mm compared to the front end face of the main body (141).
  • the center line (154) of the deep hole drilling tool (152) is parallel to the center line of the drilling tools (145) of the main body (141).
  • the distance between the center line (154) and the wall of the main body (141) is, for example, 28 mm.
  • the deep hole drill (153) used in the deep hole drilling tool (152) has - with a diameter of, for example, 10 mm - an effective drill length of, for example, 115 mm.
  • holes are drilled into the narrow sides of the furniture panels (1) into which, for example, furniture door dampers can be installed.
  • Three maintenance support supports (136) are attached in the area of the side on which the valve support plate (158) is arranged. One is mounted on the intermediate support plate (135) to the left of the cable hose holder (132). The other two are screwed behind the cable hose holder (132) on the front face of the main flange plate (157). The maintenance support supports (136) are removed after initial assembly and after each maintenance.
  • the Figure 4 shows the panel gripping device (170) in a perspective, hanging view with which furniture panels (1) are gripped by the handling device (10) for moving.
  • the plate gripping device (170) essentially consists of an adapter wedge (171) and two parallel gripping devices (181, 182) attached to it in a dimensionally stable manner.
  • the adapter wedge (171) has the geometric shape of a wedge, the wedge angle of which is 15 degrees.
  • a flange web (172) is formed on each narrow side.
  • the adapter wedge (171) together with the parallel gripping devices (181, 182) are attached to the main flange plate (157) via the two flange webs (172), cf. Figure 3 , attached.
  • the wide side of the adapter wedge (171) ends under the intermediate carrier plate (135) of the multi-processing unit (100), so that the two parallel gripping devices (181, 182), according to Figure 1 , protrude diagonally downwards.
  • the housing (183) of the upper parallel gripping device (181) is arranged with its housing edge on its upper edge, while the housing (183) of the lower parallel gripping device (181, 182) is arranged with its edge flush with the lower edge of the adapter wedge (171) is present.
  • the geometric centers of the two independently acting parallel gripping devices (181, 182) are 150 mm apart in the exemplary embodiment.
  • the individual parallel gripping device (181, 182) stores the plate gripping carriages (184) carrying the plate gripping elements (185, 186) in steel guides in its housing to ensure robustness and load-bearing capacity.
  • the latter are also made of a steel alloy.
  • the housing (183) is sealed dust-tight all around.
  • the gripping stroke of the plate gripping elements (185, 186), which is, for example, 13 mm per plate gripping element (185, 186), is recorded indirectly by means of an analog position measuring system (191) arranged on the drive housing of each parallel gripping device (181, 182).
  • the individual plate gripping element (185, 186) has a length of 140 mm, for example, with a gripping coating (189) made of polyurethane being recessed in the area of its free end.
  • a gripping coating (189) made of polyurethane being recessed in the area of its free end.
  • the screwed gripping pad (189) has a length of 50 mm and a width of 27 mm. For example, it projects 3 mm beyond the inner flank of the respective plate gripping element (185, 186).
  • the gripping force of the panel gripping elements is e.g. 1900-2000 N.
  • the combination of the high gripping force and the adhesiveness of the gripping linings (189) makes it possible to securely grip even large furniture panels (1), e.g. in the form of cupboard doors, without damaging their surface.
  • both the gripping and releasing force is generated using a double-acting pneumatic-operated cylinder-piston unit.
  • the piston of the cylinder-piston unit is supported by a spring accumulator in order, for example, to hold the gripped furniture panel (1) even without the presence of compressed air after an emergency stop of the system.
  • the Figure 5 shows a base mounting device (200) for attaching a furniture base (280) to the underside of a furniture panel, which is, for example, part of a kitchen furniture.
  • the furniture base (280) see also Figure 6 , consists of a base plate (281) on which a base housing (291) is built.
  • Four furniture plug pins (284) are arranged on the furniture contact side (283) of the base plate (281), via which the furniture base (280) can be fixed in holes in the furniture plate, for example in a non-positive, positive or frictional manner.
  • the base assembly housing (291) has, among other things, a large, almost centrally located bore around which four much smaller base mounting bores (295) are arranged. All five holes are through holes that also have parallel center lines. All center lines are aligned perpendicular to the bottom (292) of the base assembly housing (291).
  • the base mounting device (200) comprises two independently movable devices. These are a base gripping device (240) and a base driving device (260). Both devices (240, 260) are guided and stored in a cylinder block (220).
  • the cylinder block (220) itself is on an adapter body (201).
  • Figure 6 guided and stored in the vertical direction on two guide rods (205, 206) of an adapter body (201).
  • the adapter body (201) is attached to the side of the central body (110) that is opposite the valve support plate (158) by means of a spacer plate (208).
  • the adapter body (201) is positioned on the spacer plate (208) via dowel pins. The position of the spacer plate (208) is also specified via additional dowel pins on the central body (110).
  • the individual assemblies or devices are shown laterally offset from one another.
  • the cylinder block (220) is shown offset to the right.
  • the base gripping device (240) is shown even further to the right.
  • the base driving device (260) is shown shifted parallel to the left.
  • the furniture base (280) has not changed its position relative to the adapter body (201), cf Figure 5 .
  • the adapter body (201) has, according to the Figures 5 and 6 , a guide rod holder (202, 203) at the top and bottom.
  • Each guide rod holder has a through hole in its two end areas for storing the guide rods (205, 206).
  • the guide rod holders (202, 203), some of which are cuboid in shape, also serve as guide stops for the cylinder block (220) guided on the guide rods (205, 206).
  • the lower guide rod holder (203) is provided with an opening in the middle area so as not to obstruct the rear pulsation guide rod (264) of the base driving device (260).
  • the cylinder block (220) is, for example, a dodecagonal solid material block, the top and bottom of which are aligned parallel to one another. In its rear end areas it has two parallel, continuous main guide bores (223), in which plain bearing bushes for guiding the guide rods (205, 206), for example, are pressed or glued in. In the top of the cylinder block (220) there are two spring blind holes (224) between the main guide holes (223), which are used to accommodate helical compression springs (207).
  • each setting cylinder bore (226) In front of each main guide bore (223) there is a setting cylinder bore (226) which is machined from the top (221) of the cylinder block (220) and is designed as a blind hole.
  • Each setting cylinder bore (226) is tightly closed in the area of the top (221) with a cover (236), each cover (236) having a pneumatic connection.
  • a setting piston (241) with a setting piston rod (242) is arranged in each setting cylinder formed by a setting cylinder bore and a cover (236).
  • Both setting pistons (241) are connected in a dimensionally stable manner at the lower end of their setting piston rod (242) by means of a rod-shaped piston rod crosshead (243).
  • a setting parallel gripping device (245) is arranged centrally on the underside of the piston rod crosshead (243).
  • the setting parallel gripping device (245) has two arranged next to each other, for example over one Pneumatically operated double sliding wedge gear, synchronously driven carriage.
  • Each carriage carries a double finger gripper arm (246, 247).
  • the individual double-finger gripping arm (246, 247) has two downwardly projecting, for example rotationally symmetrical, gripping fingers (248). All four gripping fingers (248) are aligned parallel to one another.
  • the cylinder block (220) has two pulsation guide bores (227, 228) and one pulsation cylinder bore (229).
  • the center lines of all three holes (227-229) are in one direction Figure 6 vertical center plane, which is oriented perpendicular to the front side (222) and the guide plane of the cylinder block (220).
  • the rear pulsation guide hole (227) lies between the two spring blind holes (224).
  • the front pulsation guide hole (228) is only a small distance from the front side (222).
  • the pulsation cylinder bore (229), designed as a blind hole, lies between the two pulsation guide bores (227, 228).
  • the pulsating cylinder bore (229) is closed by a tightly fitting, magnetizable, for example ferromagnetic cover (231) with a compressed air connection.
  • the pulsating cylinder bore (229) has a diameter of, for example, 21 mm. This diameter is, for example, twice as large as the diameter of a setting cylinder bore (226).
  • the base driving device (260) thus presses on the furniture base (280) with twice the force compared to the base gripping device (240).
  • the pulsation guide bores (227, 228) of the cylinder block (220) have plain bearing bushes at least in their end regions.
  • the central component of the base driving device (260) is, for example, a cuboid pulsation carrier plate (261). From her Top (221), cf. Figure 6 , for example, the pulsating piston rod (263) protrudes in the middle with its pulsating piston (262) arranged at the end.
  • a permanent magnet (268) is recessed into the bottom of the pulsating piston (262). The latter, for example, is flush with the bottom side of the pulsating piston (262).
  • the two pulsation guide rods (264) are arranged on both sides of the pulsation piston rod (263).
  • a U-shaped double pulsation arm (265, 266) is rigidly attached to the underside of the pulsation carrier plate (261) under each pulsation guide rod (264).
  • the arms of the two pulsating double arms (265, 266) are designed so that their lower ends or end faces all lie in a plane which is also arranged perpendicular to the center line of the pulsating piston rod (263). These arms include the four corner areas of the furniture base (280) above the base plate (281), cf. Figure 5 .
  • the arms of the rear pulsating double arms (265, 266) each have a clearance groove (267) in the lower arm area. Each free space groove (267) encompasses a base side web (296) of the furniture base (280) with plenty of play.
  • the handling device In order to mount a furniture base (280) on a furniture plate (1) positioned on a suction support frame, the handling device, with its base driving device (260) installed in the multi-processing unit (100), must move ahead of the furniture base (280) provided in a magazine shelf or a magazine ) position.
  • the base gripping device (240) is completely extended.
  • the base driving device (260) On the other hand, is in its rear position, so that the pulsation carrier plate (261) rests on the underside of the cylinder block (220). In this position, the permanent magnet (268) rests on the cover (231) with little or no play.
  • the magnetic force of the permanent magnet (268) is greater than the weight of the base driving device (260).
  • the multi-processing unit (100) is moved downwards until the gripping fingers (248) are sunk into the base mounting holes (295) of the furniture base (280).
  • the double-finger gripping arms (246, 247) of the setting-parallel gripping device (245) move a few tenths of a millimeter towards each other until the gripping fingers (248) have grasped the furniture base (280) in a captive manner.
  • the handling device removes the furniture base (280) from the magazine shelf in order to position it with its four furniture pins (284) in front directly in front of the matching base pin holes. The approach movement of the handling device in the normal direction of the surface of the furniture panel (1) is only stopped when the setting pistons (241) in the cylinder block (220) have been pushed back by, for example, 10 mm - against their compressed air load.
  • the pulsating piston (262) is suddenly extended by applying pressure to its piston base.
  • the piston rod chamber of the pulsation cylinder bore (229) is vented using a separate valve before it is pressurized.
  • the pulsating piston (262) can therefore extend with almost no counter pressure.
  • the free ends of the pulsating double arms (265, 266) strike against the four areas of the base plate (281) of the furniture base (280), on the front of which the furniture plug pins (284) are located. Due to the pulsating piston extension speed and the acceleration of the inert mass involved in the extension movement, the furniture pins (284) are driven into the base pin holes by 3-4 mm per stroke, for example.
  • the compressed air in the cylinder block (220) is diverted to the pulsating cylinder space on the piston rod side.
  • the base driving device (260) now moves back, for example, 40 mm, while the double finger gripper arms (246, 247) still rest on the underside (292) of the furniture base (280) subject to compressed air.
  • the cylinder block (220) moves on the guide rods (205, 206) - together with the base driving device (260) - due to the inert mass of the latter (260). while compressing the helical compression springs (207) upwards.
  • the return movement of the base driving device (260) is thus cushioned.
  • the sliding friction in the guide rods (205, 206) and the main guide bores (223) has an additional damping effect.
  • the forward and backward movement of the base driving device is usually repeated 1 to 4 times in the case of the furniture base (280) here. Then the furniture base (280) sits with its furniture contact side (283) on the surface of the furniture panel (1) without play.
  • a position measuring system (251) arranged on the cylinder block (220) measures, cf. Figure 6 , the lower extension position of the rear setting piston (241) provided for this purpose.
  • the Figure 7 shows a fitting setting device (300). Its sub-task is to attach a furniture fitting (380) to a furniture panel (1).
  • a fitting gripping device (320) In the fitting setting device (300), there is a fitting gripping device (320) and two in a base body (301) made, for example, from an aluminum alloy identical electric screw devices (350) are stored and guided.
  • the furniture fitting (380) is the base plate of a cup hinge, on which the band arm carrying the cup is suspended, cf. Figures 8 and 9 .
  • the base plate is attached to the furniture body, while the cup of the cup hinge is recessed in the corresponding pivoting furniture door.
  • the furniture fitting (380) here consists of a central fitting rail (381), on which two screw-on tabs (391) are formed on both sides. In each screw-on bracket (391) there is a hole in which a push-in dowel (393) with a pre-assembled fitting screw (395) is fixed.
  • the fitting rail (381) which is U-shaped in cross section, has two fitting locking notches (383, 384) opposite each other at the front and back. In the rear area, the fitting rail (381) has a rail recess (382).
  • the base body (301) of the fittings setting device (300) has the shape of a cuboid block on which - in the area of its rear side - a flange web (305) is formed on both sides.
  • the base body (301) is attached to the main flange plate (157) of the central body (110) next to the plate gripping device (170) via the flange web (305).
  • the base body (301) has two adjacent gripping cylinder bores (311), in their respective upper ends, cf. Figure 7 , - to form a gripping cylinder - a cylinder bore cover (312) is arranged in a sealing manner.
  • the bore wall of the individual gripping cylinder bore (311) approaches the closest side wall of the base body (301), for example up to 4.5 mm.
  • Each cylinder bore cover (312) has a permanent magnet on its underside.
  • a cylinder bore sealing sleeve (313) sits in the respective gripping cylinder bore (311), in which the respective fitting gripping piston rod (322) is guided in a sealed manner.
  • the Figure 8 shows the essential components of the fittings setting device (300) laterally offset from one another in an expanded state. On the left you can see the fitting gripping device (320), on the right the base body (301) and in the middle the two electric screw devices (350) arranged next to each other. The furniture fitting (380) is shown below the two electric screw devices (350) in the extension of the Phillips inserts (370).
  • the center lines of the gripping cylinder bores (311) incorporated into the base body (301) lie in a gripping cylinder bore plane which is oriented parallel to the front side (304) of the base body (301). Transverse to this plane lies a central longitudinal plane of the base body (301), in which the center lines of two screwdriver guide holes (315) are arranged.
  • the last-mentioned center lines are each the same distance from the gripping cylinder bore plane. All four center lines are aligned parallel to each other.
  • the two fitting gripping pistons (321) of the fitting gripping device (320) are guided in the gripping cylinder bores (311).
  • the individual piston rod (322) of the fitting gripping piston (321) is additionally supported in the respective cylinder bore sealing sleeve (313).
  • the individual fitting gripping piston (321) is either made of a ferromagnetic material or has an insert made of the ferromagnetic material. In this way, the fitting gripping pistons (321) can be temporarily magnetically fixed in their rear position in front of the cylinder bore covers (312) without any compressed air.
  • a fitting parallel gripping device (330) is arranged on the underside of this piston rod crosshead (325).
  • two slides that can be moved parallel to one another are mounted and are pneumatically moved apart via a double sliding wedge gear for a gripper opening movement.
  • a spring accumulator is used for the gripper closing movement.
  • Each of the carriages mounted in the underside of the fitting parallel gripping device (330) has a gripping means (331, 335).
  • the rear gripping means is an axle gripping arm (331), while the front gripping means is a rear gripping arm (335). If necessary, at least the gripping position of the fitting parallel gripping device (330) is detected by sensors.
  • a fitting support block (341, 342) is attached to the two larger side surfaces of the housing of the fitting parallel gripping device (330), which has a support surface (343) chamfered on three sides on its front side.
  • the individual support surface (343) projects onto the closest one with little play Gripping means (331, 335).
  • Each fitting support block (341, 342) has a through hole (344) parallel to the center lines of the fitting gripping piston rods (322), which is arranged opposite the pre-assembled fitting screws (395) of the gripped furniture fitting (380) when the fitting setting device (300) is installed, cf. Figure 7 .
  • the two electric screwing devices (350) guided in the base body (301) each essentially consist of an electric motor (351), a gear (352), a chuck (353), a tool insert (370) and a screwdriver guide rod (360).
  • the electric motor (351) and the gearbox (352) are housed one behind the other in a cylindrical housing, the latter being seated in a longitudinally displaceable manner with little play in the respective screwdriver guide bores (315).
  • a short cantilever arm (355) to which a screwdriver guide rod (360) is attached.
  • the housing and the screwdriver guide rod (360) are oriented parallel to each other.
  • the screwdriver guide rod (360) whose length is slightly larger than the height of the base body (301), has the task of transferring the torque generated during the screwing process around the center line of the tool insert (370) in the screwdriver support hole (316) of the base body (301). to support.
  • a return screw compression spring (365) which is supported on a collar of holes inside the stepped screwdriver support holes (316).
  • the central body (110) together with the base body (301) can be pretensioned against the fitting screw (395) to be screwed - within the scope of the spring travel of the return screw compression spring (365).
  • the rotating tool insert (370) follows the screwing-in fitting screw (395).
  • the handling device (10) moves the central body (110) with the fitting setting device (300) over the furniture fitting (380) provided on the magazine shelf.
  • the furniture fitting is oriented there so that the heads of the fitting screws (395) protrude upwards.
  • the fitting setting device (300) approaches the furniture fitting (380) in the extension of the center lines of the fitting screws (395) with the fitting gripping device (320) fully extended.
  • the fitting screws (395) are, for example, 17 mm in front of the front ends of the Phillips inserts (370).
  • the gripping means (331, 335) of the fitting parallel gripping device (330) open.
  • the fitting support blocks (341, 342) rest with their support surface (343) on the screw-on tabs (391) of the furniture fitting (380).
  • the fitting screws (395) protruding from the furniture fitting (380) are inserted into the support block holes (344) of the fitting support blocks (341, 342).
  • the fitting gripping device (320) is pushed e.g. 10 mm further against the furniture fitting (380) in order to ensure that the support surfaces (343) rest securely on it.
  • the compressed air-preloaded fitting gripping pistons (321) in the gripping cylinder bores (311) give way by approximately this overpressure distance.
  • the gripping means (331, 335) rest on the fitting rail (381) of the furniture fitting (380). This is where it comes into play Axis gripping arm (331) with its holding axis (332) into the fitting locking notches (383, 384) at the front of the furniture fitting (380), while the rear gripping arm (335) grips behind the rear rail recess (382) with its rear gripping nose (336).
  • the spring force of the spring accumulator of the fitting parallel gripping device (330) holds the furniture fitting (380) in the fitting gripping device (320).
  • the handling device pushes the furniture fitting (380) with the push-in dowels (393) in the direction of the center lines of the Fitting screws (395) into the fitting holes.
  • the fitting gripping pistons (321) in their gripping cylinder bores (311) yield a few millimeters against the compressed air.
  • the indentation depth or the position of the furniture fitting (380) relative to the surface of the furniture panel (1) is recorded using the analog path measuring system (319), which is attached to the side wall of the base body (301).
  • the base body (301) is moved, for example, by 30 mm against the furniture fitting (380), so that the Phillips inserts (370) of the electric screw devices (350) contact the tool recesses of the fitting screws (395).
  • the fitting screws (395) screw into the push-in dowels (393) located in the screw-on tabs (391).
  • the electric motors (351) are equipped with torque monitoring.
  • the fitting gripping device (320) is brought into its rear position, in which the permanent magnets of the cylinder bore covers (312) magnetically lock the fitting gripping pistons (321).

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manipulator (AREA)
EP20745087.5A 2019-05-27 2020-05-25 Multibearbeitungseinheit Active EP3976328B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019003701.4A DE102019003701B4 (de) 2019-05-27 2019-05-27 Multibearbeitungseinheit
PCT/DE2020/000108 WO2020239155A1 (de) 2019-05-27 2020-05-25 Multibearbeitungseinheit

Publications (2)

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EP3976328A1 EP3976328A1 (de) 2022-04-06
EP3976328B1 true EP3976328B1 (de) 2023-11-08

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CN (1) CN114007809A (zh)
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WO (1) WO2020239155A1 (zh)

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CN113977570B (zh) * 2021-10-22 2023-04-25 宁波坤易气动科技有限公司 一种多工位旋转气爪
CN114952226B (zh) * 2022-06-30 2023-08-18 哈尔滨理工大学 一种基于气压吸附与推出的bta深孔钻钻齿安装专用夹具
CN116931507B (zh) * 2023-09-18 2024-01-12 成都飞机工业（集团）有限责任公司 一种群孔穿孔控制方法、装置、存储介质及电子设备
CN117905862B (zh) * 2024-03-15 2024-05-14 四川丹齿精工科技有限公司 一种气排钻减速器

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Publication number Priority date Publication date Assignee Title
CA997598A (en) * 1973-01-22 1976-09-28 Reginald W. Pauley Power wrench with rotatively mounted motor
DE4224800A1 (de) * 1992-07-27 1994-02-03 Ivt H Blank Elektronisch gesteuerte Setzvorrichtung
DE202012101833U1 (de) * 2012-05-18 2013-08-20 Kuka Systems Gmbh Mehrteiliges Werkzeug
DE102017012076B4 (de) * 2016-12-31 2024-01-18 Günther Zimmer Multifunktionseinheit

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DE102019003701A1 (de) 2020-12-03
CN114007809A (zh) 2022-02-01
DE102019003701B4 (de) 2023-05-11
WO2020239155A1 (de) 2020-12-03

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